The patch titled
Char: isicom, fix locking in isr
has been added to the -mm tree. Its filename is
char-isicom-fix-locking-in-isr.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Char: isicom, fix locking in isr
From: Jiri Slaby <jirislaby@xxxxxxxxx>
2 spin_unlocks are omitted in the interrupt handler. Put them there to fix up
deadlocking on UP.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/isicom.c | 2 ++
1 files changed, 2 insertions(+)
diff -puN drivers/char/isicom.c~char-isicom-fix-locking-in-isr drivers/char/isicom.c
--- a/drivers/char/isicom.c~char-isicom-fix-locking-in-isr
+++ a/drivers/char/isicom.c
@@ -563,6 +563,7 @@ static irqreturn_t isicom_interrupt(int
port = card->ports + channel;
if (!(port->flags & ASYNC_INITIALIZED)) {
outw(0x0000, base+0x04); /* enable interrupts */
+ spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}
@@ -677,6 +678,7 @@ static irqreturn_t isicom_interrupt(int
tty_flip_buffer_push(tty);
}
outw(0x0000, base+0x04); /* enable interrupts */
+ spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
char-tty-delete-wake_up_interruptible-after-tty_wakeup.patch
char-isicom-remove-tty_hangwakeup-bottomhalves.patch
mxser-remove-ambiguous-redefinition-of-init_work.patch
char-isicom-fix-locking-in-isr.patch
char-isicom-fix-probe-race.patch
char-isicom-augment-card_reset.patch
char-isicom-check-card-state-in-isr.patch
char-isicom-support-higher-rates.patch
shrink_slab-handle-bad-shrinkers.patch
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